Changelog

• Fixed a performance issue in OpenVDB rendering. Scene with relatively large amount of textures (hundreds of megabytes) will have an acceleration between x2 and x3.
• Automated texture optimization is now handled directly by 3Delight (see Handling of Textures) and offers better error reporting.
• Fixed timing statistics in relation to the "other" category.
• UDIMs render about 8% faster.
• Fixed rendering of VDB volumes on 3Delight Cloud when renders are started from a Windows platform.
• Fixed non-deterministic renders. Using different number of threads was not producing exactly the same image.

3Delight Display

• The cloud rendering activity dialog now shows a sequence as a single un-foldable item.
• More consistant alignment of values with using the picker (using the "P" key). 
• Better presentation of the cross in the Loupe tool. It is now perfectly centered inside the shown pixel.

3Delight for Maya

• Removed the texture directory workspace option as this is now handled directly by 3Delight (see Handling of Textures).
• The workspace UI has been removed as it is now empty.

3Delight for Katana

• Removed the texture directory preference as this is now handled directly by 3Delight (see Handling of Textures).

OLS Shaders

• Improved presentation and variables naming in Car Paint and Principled.
• Improved documentation for supported shaders.

• Fixed intersection artifacts that were apparent when using subdivision surfaces and sub surface.

3Delight Display

• Fixed magnifying tool zoom factor. It now behaves consistently across all screens of varying DPI (including Retina displays).
• Improved presentation of the cloud rendering activity dialog (see ).
• Fixed support of .3DL color space file format. 

OLS Shaders

• Introducing 3Delight Principled material. To become the standard Materia across all plug-ins.

• Introduced PTEX support.
• Fixed an issue in the rendering core affecting instances organised in hierarchies (#7212). This issue caused objects to be clipped.
• Faster render stops during the synchronisation phase of 3Delight Cloud renders.
• Corrected renderdl -h output.
• Improve accuracy of ray intersection to remove various "bias"  problems. (Issues #7179 and #7216).
• Removed various legacy include files from package.
• Fix rendering of OpenVDB volumes on 3Delight Cloud.
• User friendly error messages for 3Delight Cloud error conditions.
• Fixed minor memory leak.

3Delight Display

• Cloud renders now receive progress and statistics exactly as local renders.
• Added a progress indicator for 3Delight Cloud scene synchronisation.
• 3Delight Display has a new application icon and an updated and About dialogue.
• Fixed various issues with the loupe tool.
• The sign in condition is remembered upon exit and start of 3Delight Display.
  
• Added Sign In tab in 3Delight Display's sidebar. This will work only for users registered for beta testing 3Delight Cloud.

3Delight for Maya

• 3Delight Glass now show transparency in the VP2 viewport. 
• Added a Volume AOV.
• Fixed 3Delight Display on Retina displays when started from Maya. The issue was causing the doubling of pixels.
• Fixed Abort button behaviour for Cloud renders. It was non-responsive and sometimes resulted in the application to crash.
• Fixed Material Viewer. Viewing and editing of both shaders and environments are supported. 
• All 3Delight^NSI error messages are now shown in the Script Editor instead of the terminal. This is particularly important on macOS and Windows where the terminal is not always available, making error messages not shown at all.
• Improvements to the templates generated for auto-loaded OSL shaders.
• An NSI file export now has the same scene output as a batch render. This means frame buffer and overrides options are not exported in the NSI file.
• Fixed dlMetal presets (Presets menu in the Attribute Editor).
• Updated URLs for Help and updated About dialogue.
• Removed obsolete icons.

3Delight for Katana

• Added a volume AOV.

OSL Shaders

• Added support for Volume AOV both in Atmosphere and OpenVDB shaders.
• Added 3Delight Car Paint and Random Material.
• Added Random Color utility shader.
• Added Flake 3D texture shader.
• Added a Facing Ratio utility shader.
• Added a Worley Noise and a Flake 3D Textures.
• OSL shaders can now declare a classification string. This is in preparation of an automated way to create Maya shading nodes directly from OSL shaders. This string has no effect in Katana. 

• 5% to 15% faster rendering, depending on the scene.
• Fixed a problem with refractions (GGX BRDF) causing noticeable darkening.
• Fixed an error on linux when using 3Delight from python.
• Update of the first passes of a live render are now much faster (up to x2 times faster).
• Faster time to first pixel for scenes with large emissive meshes. Scenes with millions of light sources could start as much as x10 times faster.
• Added support for rendering VDB velocity from three float grids instead of a vector grid.
• Fixed some live render crashes related to instances.
• Fixed VDB emission.
• Added new python binding to NSI.
• Fixed changes to camera shutter in live render.
• Improve performance of sky shader.
• Fix performance of displacement after a change in live render.
• 3Delight Display has a new Sidebar with a new Light Mixer UI and a new Loupe tool.

3Delight for Maya

• Improved VDB rendering speed in viewport.
• Add support for Maya's Light Editor. This includes ability to output a light group as a multi-light layer.
• Add Color Blend utility node. This node has a similar functionality to the Layer Shader.
• Better support of Light Linking. Light links to sets and shading groups are now supported.
• Fixed a problem with instanced objects when each instance has a different shader.
• Support Maya's built-in UDIM tag, including support for UDIM tiling on file node.
• Improved UI for all materials and shaders.

3Delight for Katana

• Instantaneous opening of VDB files, even large ones.
• Fixed a crash with some VDB files.
• Draw lights behind the selection too instead of in front (usability suggestion by Matthew Bennett).
• Multi-Threaded scene export and scene export optimization.
• Find OSL shaders without Katana Resources.
• Various fixes to XGen loading.
• Do not link with Katana's Python libraries anymore. Those are not needed.
• Implement automatic conversion of textures into TDLs (mip mapped tiff files).